| Deposit ID | 10193589 |
|---|---|
| MRDS ID | W013903 |
| MAS/MILS ID | 0160850158 |
| Record type | Site |
| Current site name | Sunnyside |
| Alternate or previous names | See Thunder Mountain 0160850625, See Dewey 0160850154, Also Dewey Dome. |
| Related records | 10070806 |
| Point of reference | Main Entrance |
|---|---|
| Geographic coordinates: | -115.13155, 44.95458 (WGS84) |
| Elevation | 2438 |
| Location accuracy | 100(meters) |
Political divisions (FIPS codes)
Valley(county)
Idaho(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Rainbow Peak(quadrangle 1:24,000 scale)
Pistol Creek(quadrangle 1:100,000 scale)
Challis(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Middle Fork Salmon(hydrologic unit)
Salmon(hydrologic accounting unit)
Lower Snake(hydrologic subregion)
Pacific Northwest(hydrologic region)
Federal lands
Payette National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Idaho | Valley |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Boise | 019 N | 011 E | 29 | C N2SE | Idaho |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Secondary |
| Main Entrance (1) | -115.13155, 44.95458 |
|---|
| Thickness | 8M | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Length | 0M | ||||||||||||||||||||||
| Width | 0M | ||||||||||||||||||||||
| Depth to top | 15M | ||||||||||||||||||||||
| |||||||||||||||||||||||
| Operation type | Surface |
|---|---|
| Development status | Plant |
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1899 |
| Mining method | Open Pit |
| Year of first production | 1902 |
| Plant type | Leach |
| Milling method | Heap Leach-Merrill-Crowe |
| Type of mineral rights | Located Claim |
|---|
| Ownership category | National Forest |
|---|---|
| Area name | Payette National Forest |
| Type | Owner |
|---|---|
| Owner | Thunder Mountain Gold, Inc. |
| Interest | 100 |
| Home office | Washington |
| Year | 1996 |
| Type | Owner |
|---|---|
| Owner | Coeur D'Alene Mines Corp. |
| ID | 1001475 |
| Interest | 100 |
| Home office | Idaho |
| Year | 1992 |
| First year | 292 |
| Type | Operator |
|---|---|
| Owner | Thunder Mtn Gold Inc. |
| ID | 1001475 |
| Interest | 100 |
| Home office | Idaho |
| Year | 1992 |
| First year | 1992 |
| Type | Owner-Operator |
|---|---|
| Owner | Coeur D'Alene Mines Corp. |
| ID | 1001475 |
| Interest | 100 |
| Home office | Idaho |
| Year | 1986 |
| First year | 1986 |
| Last year | 1992 |
| Type | In-situ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1900 | ||||||||||||||
| Demonstrated | 2322570mt ore | ||||||||||||||
| Total resources | 2322570mt ore | ||||||||||||||
| |||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0160850158 | |
| USGS | Mineral Resources Data System | MRDS | W013903 | MAS references MRDS |
| Mine Safety and Health Administration | MSHA | MSHA | 1001475 | |
| Idaho Geological Survey | Idaho Mines and Prospects | IMP | CH__69 | http://www.idahogeology.org/ |
USGS BULL 1304, P 69+
MSHA REPORT DATED JULY, 1982.
ID DIV. OF AIR QUALITY. THUNDER MTN. MINE AIR QUALITY
PERMIT, MAY, 1986, 9 PP.
IBMG PAMP. 44, P40.
| Subject category | Comment text |
|---|---|
| Deposit | GOOD POTENTIAL FOR FUTURE PRODUCTION BUT UNDER PRESENT ECONOMIC CONDITIONS IS CONSIDERED MARGINAL. ESTIMATED MARGINAL RESERVES ARE 2,107,000 TONS RANGING FROM 0.16-0.18 OUNCE GOLD PER TON PER R.J. MCRAE. G.E. ZIEGLER ALSO ESTIMATES AN ADDITIONAL 25 MILLION TONS OF POSSIBLE ORE CONTACT: ANNE MARIE OBERLY, (208) 385-0373. WILL NOT BE ANALYZED IN THE 1992 AU AVAILABILITY STUDY (TOO SMALL). 12-90-RESERVES EXHAUSTED. MINE CLOSURE TO BE COMPLETED 1992. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 30-DEC-96 | Buckingham, David A. | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
| Status | Abandoned since 07/23/1991 |
|---|---|
| MSHA mine ID | 1001475 |
| Mine name (MSHA) | Sunnyside |
| Current operator | Coeur-Thunder Mountain Inc |
| Current controller (parent) | Coeur Mining, Inc. |
| Mine type | Surface (Metal / non-metal) |
MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.
Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.